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귀래당
Your Bazi chart, computed by astronomy — not guessed by AI
마음을 쉬고 싶을 때 돌아오는 집, 귀래당. 천문 계산 만세력으로 명식을 정확히 펴고, 다섯 상담사가 듣기 좋은 말로 띄우지 않고 정직하게 당신 이야기를 들어요. 점이 아니라 나를 비추는 거울 같은 대화.
Top comment
Hi everyone I used to work as a librarian in Korea — no coding background. I built Gwiraedang with Claude Code because I noticed ChatGPT and other AI chatbots often get Korean BaZi (사주) charts wrong: converting a birth date into the correct Four Pillars chart requires precise astronomical calculation (solar terms), and generative models tend to guess instead of compute. So I separated the two: a deterministic astronomy engine computes the chart (checked against Korea's official astronomical institute data), and 5 distinct AI counselor personas handle the conversation on top of an already-correct chart — each reading from a different classical tradition, designed not to just flatter you. Since I can't code-review myself, I leaned hard into automated testing (2,700+ tests) to catch mistakes instead. Would love feedback, especially on whether the "computed, not generated" pitch makes sense to people who've never tried a BaZi app before. Happy to answer anything about the build!
About 귀래당 on Product Hunt
“Your Bazi chart, computed by astronomy — not guessed by AI”
귀래당 was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #140 on the daily leaderboard. 마음을 쉬고 싶을 때 돌아오는 집, 귀래당. 천문 계산 만세력으로 명식을 정확히 펴고, 다섯 상담사가 듣기 좋은 말로 띄우지 않고 정직하게 당신 이야기를 들어요. 점이 아니라 나를 비추는 거울 같은 대화.
On the analytics side, 귀래당 competes within Bots — topics that collectively have 110.8k followers on Product Hunt. The dashboard above tracks how 귀래당 performed against the three products that launched closest to it on the same day.
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